TY - BOOK AU - Hellwege, K.-H [ed.] TI - Landolt-Börnstein: numerical data and functional relationships in science and technology SN - 3540109765 U1 - 530.09 PY - 1982/// CY - Berlin PB - Springer-Verlag KW - Astronomy and astrophysics N1 - Group vi : Astronomy .astrophysics and space research; Contents : v. 2. Astronomy and astrophysics ER -